Progress of value classes

[Brian Goetz]

 From a *design* perspective, you are correct that most of the 
discussion has been on "B3" classes, which raises the reasonable 
question of "can we ship B2 while this discussion plays out."  For a 
long time, we've felt uncomfortable doing so, because until we had a 
reasonable story for B3 in which we had high confidence, the risk of a 
premature B2 release constraining the bigger story was still high.

We feel now that we're approaching the point where the B3 story is 
converging to the desired confidence level that B2 will not be 
destabilized.  So we're able to proceed more directly on that.

As to scheduling, the answer is as always: it's ready when it's ready.  
Even though the design has settled, there is still specification, 
implementation, and testing work to do, so it will take some more time.  
But I think this train can start moving faster soon.  It's not that 
there are "blockers", but there is plenty of work.

On 5/22/2023 12:47 PM, Quân Anh Mai wrote:
> Hi,
>
> It seems to me that all of the recent discussions are about B3 classes 
> and the discussions regarding B2 classes have generally settled down. 
> May I ask if there is any blocker for Value classes to integrate into 
> mainline and can the JEP make it into JDK 22, or maybe JDK 21?
>
> Thanks a lot for your answers,
> Quan Anh
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